Sump Pump Maintenance Chicago — Inspection & Testing

Last updated October 7, 2026

Chicago basements sit in clay soil below a water table that rises with every spring thaw and summer storm. The sump pump is the only thing between that water and the floor, and most of them get no attention until the night they don't run.

Plumbers 911 Chicago dispatches union plumbers from Plumbers Local 130 to test the pump under load, check the parts that fail silently, clean the pit, and tell you whether the pump is good for another season or on borrowed time. Call 833-758-6911; a live person answers around the clock.

What the inspection covers

Load test. Water into the pit until the pump cycles. Does it start promptly, move water, and shut off cleanly?
Float and switch. Free travel, no binding on the pit wall, cords or discharge pipe; the switch replaced if it's sticking.
Check valve. The valve on the discharge that keeps pumped water from falling back into the pit. A failed one causes short-cycling, which wears out the motor.
Discharge line. From the pit to outside: no leaks, no freeze points, terminating well away from the foundation, and not connected to the sanitary sewer (a Chicago code violation and a cause of basement backups).
Pit cleaning. Silt, gravel and iron bacteria sludge removed from the pit and the intake.
Battery backup. Tested under power-off conditions, battery charge and age checked, terminals cleaned. A backup with a dead battery is decoration.
Lid and seal. A sealed cover keeps debris and humidity out and radon down.
An honest age and condition read. Most residential pumps in Chicago conditions last seven to ten years; the plumber will tell you where yours is.

When to schedule

Early spring before the thaw, and early fall before the storm season and before freezing weather can block the discharge line. Also after any event where the basement took on water, after a power outage during a storm, or if the pump has been running constantly or not at all. If you've just bought a Chicago house with a finished basement, make it one of the first calls. How to do a quick check yourself between visits.

Backup systems

The storm that fills the pit is usually the one that knocks out the power. A battery backup pump runs for hours on a charged battery and sounds an alarm when it takes over; a water-powered backup uses city water pressure and runs as long as the city does. The inspection includes a recommendation on which fits your house if you don't have one, and a test of the one you do. Battery backup installation is a separate service we also provide.

Frequently Asked Questions About Sump Pump Inspection & Maintenance

How often should a sump pump be inspected?

Twice a year is the right cadence for Chicago: before the spring thaw and before fall storms. Once a year is the minimum. After any basement water event, don't wait for the schedule.

Can I test the pump myself?

Yes, and you should between visits: pour a bucket of water into the pit and watch it run and shut off. What you can't easily see is the condition of the check valve, the switch, the discharge line outside, or the battery, which is what the inspection is for.

Will the plumber replace parts during the inspection?

If a switch, check valve or battery needs replacing, you'll be told, and you'll get the price before anything is done. Small parts are usually handled on the same visit; a pump that's failed is a replacement conversation.

My pump runs constantly. Is that normal?

In a wet week, a pump that cycles often is doing its job. A pump that never shuts off, or that runs when it's dry outside, usually has a stuck float, a failed check valve, or a pit that's receiving water it shouldn't. Here are the six causes. Have it looked at before it burns out.

Do you handle ejector pumps too?

Yes. Ejector pits (sewage, from a basement bathroom or laundry) have a sealed lid and a vent and need their own inspection. See our ejector pump service.

Sump Pump Inspection & Maintenance in Chicago